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| 型號： | MAX2742 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Single-Chip Global Positioning System Receiver Front-End |
| 中文描述： | 單芯片、全球定位系統(tǒng)接收前端 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大小： | 573K |
| 代理商： | MAX2742 |
M
Single-Chip Global Positioning System
Receiver Front-End
_______________________________________________________________________________________
3
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2742 EV kit, V
DD
= +2.4V to +3.6V, SHDN = V
DD
, T
A
= -40
°
C to +85
°
C. Typical values are at V
DD
= +3V and T
A
= +25
°
C,
unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
SYNTHESIZER
TCXO Input Frequency
Charge-Pump Current
Fundamental frequency crystal
18.414
0.4
-71
-106
-66
210
200
MHz
mA
f
OFFSET
= 10kHz offset, BW
LOOP
= 70kHz
f
OFFSET
= 1MHz offset, BW
LOOP
= 70kHz
BW
LOOP
= 70kHz
(Notes 2, 3)
(Notes 2, 3)
Phase Noise
dBc/Hz
Comparison Frequency Spur
VCO Turning Range
VCO Tuning Gain
IF STAGE
IF Stage Gain
Dynamic Range IF Stage Gain
dBc
MHz
MHz/V
148
139
277
305
VGA set at maximum gain
77
50
0.1
3.2
dB
dB
Low-frequency corner
High-frequency corner
Bandpass Filter 1dB Corner
Frequency
MHz
Bandpass Filter 60dB High-Side
Rejection
5.0
MHz
Image Rejection
In-Band Ripple
AGC Loop Lock Time
18
1
1
dB
dB
ms
Note 1:
At T
A
= +25°C, min/max limits are guaranteed by production test.
Note 2:
At T
A
= -40°C, min/max limits are guaranteed by design and characterization.
Note 3:
At T
A
= +25°C and +85°C, min/max limits are guaranteed by production test.
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